Sorel MARGO LACE women's Low Ankle Boots in Black Leather, Available in women's sizes. 3. UPPER: Waterproof leather upper. Pork leather lining & synthetic material. SOCKLINER: EVA sockliner cut with shape memory, upper layer made from pig leather. OUTSOLE: Molded BPU Polyurethane wedge heel, injected TPU heel. OUTSOLE: Molded rubber. Free Next Day Delivery & Free Returns on all orders!